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APCO International 2007, Baltimore, MD.-August 7, 2007-Aeroflex today announced an exclusive new option for the Aeroflex 3900 Series Digital Radio Test Set to support P25 Trunking. The 3900 Series is the latest generation of Aeroflex radio test systems to support current and future technologies for the Land Mobile Radio industry. The newest version, the 3920 Digital Radio Test Set, was released in June 2007. Designed to support the needs of basic P25 testing as well as complex analysis of advanced P25 systems, the 3900 Series features powerful analysis tools with an easy to use graphics interface. The new P25 Trunking Option (option 201) supports trunking operation in the VHF/UHF/700 MHz and 800 MHz bands. Exclusive features include the ability to simultaneously generate a control channel and traffic channel with duplex offset capability to go from 1 MHz to 2.7 GHz. With the 3900 Series, operators with radios on P25 systems can rest assure their radios are in proper working order, providing the critical interoperability needed for today's communications. " The 3900 Series is a platform for expansion and already supports a number of new digital technologies including TETRA P25 conventional, and HPD® technology. Now with the additional P25 trunking capabilities offered on the 3900 Series, Aeroflex continues to lead the market in testing new land mobile digital radio standards," said Rob Barden, director of product marketing, Aeroflex Test Solutions. "The 3900 Series represents the third generation of radio test sets and includes a number of features developed from our highly successful IFR 2975 P25 Radio Test Set. We are seeing an even higher level of success for the 3900 Series." Additionally, this new trunking option allows P25 end users to quickly establish pre-defined setups for quick recall when testing large numbers of radios. The System Plan configuration function provides the capability to configure the 3900 Series similar to a repeater with the ability to define WACN, SYS ID, RFSS ID, SITE ID and other message functions associated with P25 control channel emulation. When combined with option 390XOPT200, the 3900 Series also provides powerful, yet easy to use analysis of P25 parametric performance including Power, Frequency Error, C4FM Modulation Fidelity as well as an Eye Diagram, Constellation and Distribution plots of the P25 symbols. With lab quality performance, these exclusive features allow users of the 3900 Series Radio Test Sets to isolate problems quickly and accurately in any P25 radio system and confidently simulate P25 trunked environments before placing new or repaired radios on their P25 network. Price and availability Option 201 will be available in late August 2007. All P25 software features will be compatible with the 3901 and the 3902 systems currently fielded. For pricing, contact your local Aeroflex sales office by visiting www.aeroflex.com or calling Aeroflex Sales at (800) 835-2352.

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